5.1.6
Filters
Audio
Multimedia
OpenCL Video
VAAPI Video
Video
Sinks
Audio
Video
Sources
Audio
Multimedia
Video
Other
7.0.2
6.1.2
6.0.1
5.0.3
4.4.5
4.3.8
4.2.10
4.1.11
4.0.6
3.4.13
3.3.9
3.2.19
3.1.11
3.0.12
2.8.22
2.7.7
2.6.9
2.5.11
2.4.14
2.3.6
2.2.16
2.1.8
2.0.7
1.2.12
1.1.16
1.0.10
0.11.5
0.10.16
0.9.4
0.8.15
0.7.17
Audio
acompressor A compressor is mainly used to reduce the dynamic range of a signal.
acontrast Simple audio dynamic range compression/expansion filter.
acopy Copy the input audio source unchanged to the output.
acrossfade Apply cross fade from one input audio stream to another input audio stream.
acrossover Split audio stream into several bands.
acrusher Reduce audio bit resolution.
acue Delay audio filtering until a given wallclock timestamp.
adeclick Remove impulsive noise from input audio.
adeclip Remove clipped samples from input audio.
adecorrelate Apply decorrelation to input audio stream.
adelay Delay one or more audio channels.
adenorm Remedy denormals in audio by adding extremely low-level noise.
aderivative Compute derivative/integral of audio stream.
aintegral Compute derivative/integral of audio stream.
adynamicequalizer Apply dynamic equalization to input audio stream.
adynamicsmooth Apply dynamic smoothing to input audio stream.
aecho Apply echoing to the input audio.
aemphasis Audio emphasis filter creates or restores material directly taken from LPs or emphased CDs with different filter curves.
aeval Modify an audio signal according to the specified expressions.
aexciter An exciter is used to produce high sound that is not present in the original signal.
afade Apply fade-in/out effect to input audio.
afftdn Denoise audio samples with FFT.
afftfilt Apply arbitrary expressions to samples in frequency domain.
afir Apply an arbitrary Finite Impulse Response filter.
aformat Set output format constraints for the input audio.
afreqshift Apply frequency shift to input audio samples.
afwtdn Reduce broadband noise from input samples using Wavelets.
agate A gate is mainly used to reduce lower parts of a signal.
aiir Apply an arbitrary Infinite Impulse Response filter.
alimiter The limiter prevents an input signal from rising over a desired threshold.
allpass Apply a two-pole all-pass filter with central frequency (in Hz) frequency, and filter-width width.
aloop Loop audio samples.
amerge Merge two or more audio streams into a single multi-channel stream.
amix Mixes multiple audio inputs into a single output.
amultiply Multiply first audio stream with second audio stream and store result in output audio stream.
anequalizer High-order parametric multiband equalizer for each channel.
anlmdn Reduce broadband noise in audio samples using Non-Local Means algorithm.
anlmf Apply Normalized Least-Mean-(Squares|Fourth) algorithm to the first audio stream using the second audio stream.
anlms Apply Normalized Least-Mean-(Squares|Fourth) algorithm to the first audio stream using the second audio stream.
anull Pass the audio source unchanged to the output.
apad Pad the end of an audio stream with silence.
aphaser Add a phasing effect to the input audio.
aphaseshift Apply phase shift to input audio samples.
apsyclip Apply Psychoacoustic clipper to input audio stream.
apulsator Audio pulsator is something between an autopanner and a tremolo.
aresample Resample the input audio to the specified parameters, using the libswresample library.
areverse Reverse an audio clip.
arnndn Reduce noise from speech using Recurrent Neural Networks.
asdr Measure Audio Signal-to-Distortion Ratio.
asetnsamples Set the number of samples per each output audio frame.
asetrate Set the sample rate without altering the PCM data.
ashowinfo Show a line containing various information for each input audio frame.
asoftclip Apply audio soft clipping.
aspectralstats Display frequency domain statistical information about the audio channels.
asr Automatic Speech Recognition .
astats Display time domain statistical information about the audio channels.
asubboost Boost subwoofer frequencies.
asubcut Cut subwoofer frequencies.
asupercut Cut super frequencies.
asuperpass Apply high order Butterworth band-pass filter.
asuperstop Apply high order Butterworth band-stop filter.
atempo Adjust audio tempo.
atilt Apply spectral tilt filter to audio stream.
atrim Trim the input so that the output contains one continuous subpart of the input.
axcorrelate Calculate normalized windowed cross-correlation between two input audio streams.
bandpass Apply a two-pole Butterworth band-pass filter with central frequency frequency, and (3dB-point) band-width width.
bandreject Apply a two-pole Butterworth band-reject filter with central frequency frequency, and (3dB-point) band-width width.
bass Boost or cut the bass (lower) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
lowshelf Boost or cut the bass (lower) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
biquad Apply a biquad IIR filter with the given coefficients.
bs2b Bauer stereo to binaural transformation, which improves headphone listening of stereo audio records.
channelmap Remap input channels to new locations.
channelsplit Split each channel from an input audio stream into a separate output stream.
chorus Add a chorus effect to the audio.
compand Compress or expand the audio’s dynamic range.
compensationdelay Compensation Delay Line is a metric based delay to compensate differing positions of microphones or speakers.
crossfeed Apply headphone crossfeed filter.
crystalizer Simple algorithm for audio noise sharpening.
dcshift Apply a DC shift to the audio.
deesser Apply de-essing to the audio samples.
dialoguenhance Enhance dialogue in stereo audio.
drmeter Measure audio dynamic range.
dynaudnorm Dynamic Audio Normalizer.
earwax Make audio easier to listen to on headphones.
equalizer Apply a two-pole peaking equalisation (EQ) filter.
extrastereo Linearly increases the difference between left and right channels which adds some sort of "live" effect to playback.
firequalizer Apply FIR Equalization using arbitrary frequency response.
flanger Apply a flanging effect to the audio.
haas Apply Haas effect to audio.
hdcd Decodes High Definition Compatible Digital (HDCD) data.
headphone Apply head-related transfer functions (HRTFs) to create virtual loudspeakers around the user for binaural listening via headphones.
highpass Apply a high-pass filter with 3dB point frequency.
join Join multiple input streams into one multi-channel stream.
ladspa Load a LADSPA (Linux Audio Developer’s Simple Plugin API) plugin.
loudnorm EBU R128 loudness normalization.
lowpass Apply a low-pass filter with 3dB point frequency.
lv2 Load a LV2 (LADSPA Version 2) plugin.
mcompand Multiband Compress or expand the audio’s dynamic range.
pan Mix channels with specific gain levels.
replaygain ReplayGain scanner filter.
resample Convert the audio sample format, sample rate and channel layout.
rubberband Apply time-stretching and pitch-shifting with librubberband.
sidechaincompress This filter acts like normal compressor but has the ability to compress detected signal using second input signal.
sidechaingate A sidechain gate acts like a normal (wideband) gate but has the ability to filter the detected signal before sending it to the gain reduction stage.
silencedetect Detect silence in an audio stream.
silenceremove Remove silence from the beginning, middle or end of the audio.
sofalizer SOFAlizer uses head-related transfer functions (HRTFs) to create virtual loudspeakers around the user for binaural listening via headphones (audio formats up to 9 channels supported).
speechnorm Speech Normalizer.
stereotools This filter has some handy utilities to manage stereo signals, for converting M/S stereo recordings to L/R signal while having control over the parameters or spreading the stereo image of master track.
stereowiden This filter enhance the stereo effect by suppressing signal common to both channels and by delaying the signal of left into right and vice versa, thereby widening the stereo effect.
superequalizer Apply 18 band equalizer.
surround Apply audio surround upmix filter.
tiltshelf Boost or cut the lower frequencies and cut or boost higher frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
treble Boost or cut treble (upper) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
highshelf Boost or cut treble (upper) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
tremolo Sinusoidal amplitude modulation.
vibrato Sinusoidal phase modulation.
virtualbass Apply audio Virtual Bass filter.
volume Adjust the input audio volume.
volumedetect Detect the volume of the input video.
Video
addroi Mark a region of interest in a video frame.
alphaextract Extract the alpha component from the input as a grayscale video.
alphamerge Add or replace the alpha component of the primary input with the grayscale value of a second input.
amplify Amplify differences between current pixel and pixels of adjacent frames in same pixel location.
ass Same as the subtitles filter, except that it doesn’t require libavcodec and libavformat to work.
atadenoise Apply an Adaptive Temporal Averaging Denoiser to the video input.
avgblur Apply average blur filter.
bbox Compute the bounding box for the non-black pixels in the input frame luminance plane.
bilateral Apply bilateral filter, spatial smoothing while preserving edges.
bitplanenoise Show and measure bit plane noise.
blackdetect Detect video intervals that are (almost) completely black.
blackframe Detect frames that are (almost) completely black.
blend Blend two video frames into each other.
blockdetect Determines blockiness of frames without altering the input frames.
blurdetect Determines blurriness of frames without altering the input frames.
bm3d Denoise frames using Block-Matching 3D algorithm.
boxblur Apply a boxblur algorithm to the input video.
bwdif Deinterlace the input video ("bwdif" stands for "Bob Weaver Deinterlacing Filter").
cas Apply Contrast Adaptive Sharpen filter to video stream.
chromahold Remove all color information for all colors except for certain one.
chromakey YUV colorspace color/chroma keying.
chromakey_cuda CUDA accelerated YUV colorspace color/chroma keying.
chromanr Reduce chrominance noise.
chromashift Shift chroma pixels horizontally and/or vertically.
ciescope Display CIE color diagram with pixels overlaid onto it.
codecview Visualize information exported by some codecs.
colorbalance Modify intensity of primary colors (red, green and blue) of input frames.
colorcontrast Adjust color contrast between RGB components.
colorcorrect Adjust color white balance selectively for blacks and whites.
colorchannelmixer Adjust video input frames by re-mixing color channels.
colorize Overlay a solid color on the video stream.
colorkey RGB colorspace color keying.
colorhold Remove all color information for all RGB colors except for certain one.
colorlevels Adjust video input frames using levels.
colormap Apply custom color maps to video stream.
colormatrix Convert color matrix.
colorspace Convert colorspace, transfer characteristics or color primaries.
colortemperature Adjust color temperature in video to simulate variations in ambient color temperature.
convolution Apply convolution of 3x3, 5x5, 7x7 or horizontal/vertical up to 49 elements.
convolve Apply 2D convolution of video stream in frequency domain using second stream as impulse.
copy Copy the input video source unchanged to the output.
coreimage Video filtering on GPU using Apple’s CoreImage API on OSX.
cover_rect Cover a rectangular object .
crop Crop the input video to given dimensions.
cropdetect Auto-detect the crop size.
cue Delay video filtering until a given wallclock timestamp.
curves Apply color adjustments using curves.
datascope Video data analysis filter.
dblur Apply Directional blur filter.
dctdnoiz Denoise frames using 2D DCT (frequency domain filtering).
deband Remove banding artifacts from input video.
deblock Remove blocking artifacts from input video.
decimate Drop duplicated frames at regular intervals.
deconvolve Apply 2D deconvolution of video stream in frequency domain using second stream as impulse.
dedot Reduce cross-luminance (dot-crawl) and cross-color (rainbows) from video.
deflate Apply deflate effect to the video.
deflicker Remove temporal frame luminance variations.
dejudder Remove judder produced by partially interlaced telecined content.
delogo Suppress a TV station logo by a simple interpolation of the surrounding pixels.
derain Remove the rain in the input image/video by applying the derain methods based on convolutional neural networks.
deshake Attempt to fix small changes in horizontal and/or vertical shift.
despill Remove unwanted contamination of foreground colors, caused by reflected color of greenscreen or bluescreen.
detelecine Apply an exact inverse of the telecine operation.
dilation Apply dilation effect to the video.
displace Displace pixels as indicated by second and third input stream.
dnn_classify Do classification with deep neural networks based on bounding boxes.
dnn_detect Do object detection with deep neural networks.
dnn_processing Do image processing with deep neural networks.
drawbox Draw a colored box on the input image.
drawgraph Draw a graph using input video metadata.
drawgrid Draw a grid on the input image.
drawtext Draw a text string or text from a specified file on top of a video, using the libfreetype library.
edgedetect Detect and draw edges.
elbg Apply a posterize effect using the ELBG (Enhanced LBG) algorithm.
entropy Measure graylevel entropy in histogram of color channels of video frames.
epx Apply the EPX magnification filter which is designed for pixel art.
eq Set brightness, contrast, saturation and approximate gamma adjustment.
erosion Apply erosion effect to the video.
estdif Deinterlace the input video ("estdif" stands for "Edge Slope Tracing Deinterlacing Filter").
exposure Adjust exposure of the video stream.
extractplanes Extract color channel components from input video stream into separate grayscale video streams.
fade Apply a fade-in/out effect to the input video.
feedback Apply feedback video filter.
fftdnoiz Denoise frames using 3D FFT (frequency domain filtering).
fftfilt Apply arbitrary expressions to samples in frequency domain .
field Extract a single field from an interlaced image using stride arithmetic to avoid wasting CPU time.
fieldhint Create new frames by copying the top and bottom fields from surrounding frames supplied as numbers by the hint file.
fieldmatch Field matching filter for inverse telecine.
fieldorder Transform the field order of the input video.
fifo Buffer input images and send them when they are requested.
afifo Buffer input images and send them when they are requested.
fillborders Fill borders of the input video, without changing video stream dimensions.
find_rect Find a rectangular object .
floodfill Flood area with values of same pixel components with another values.
format Convert the input video to one of the specified pixel formats.
fps Convert the video to specified constant frame rate by duplicating or dropping frames as necessary.
framepack Pack two different video streams into a stereoscopic video, setting proper metadata on supported codecs.
framerate Change the frame rate by interpolating new video output frames from the source frames.
framestep Select one frame every N-th frame.
freezedetect Detect frozen video.
freezeframes Freeze video frames.
frei0r Apply a frei0r effect to the input video.
fspp Apply fast and simple postprocessing.
gblur Apply Gaussian blur filter.
geq Apply generic equation to each pixel.
gradfun Fix the banding artifacts that are sometimes introduced into nearly flat regions by truncation to 8-bit color depth.
graphmonitor Show various filtergraph stats.
grayworld A color constancy filter that applies color correction based on the grayworld assumption .
greyedge A color constancy variation filter which estimates scene illumination via grey edge algorithm and corrects the scene colors accordingly.
guided Apply guided filter for edge-preserving smoothing, dehazing and so on.
haldclut Apply a Hald CLUT to a video stream.
hflip Flip the input video horizontally.
histeq This filter applies a global color histogram equalization on a per-frame basis.
histogram Compute and draw a color distribution histogram for the input video.
hqdn3d This is a high precision/quality 3d denoise filter.
hwdownload Download hardware frames to system memory.
hwmap Map hardware frames to system memory or to another device.
hwupload Upload system memory frames to hardware surfaces.
hwupload_cuda Upload system memory frames to a CUDA device.
hqx Apply a high-quality magnification filter designed for pixel art.
hstack Stack input videos horizontally.
hsvhold Turns a certain HSV range into gray values.
hsvkey Turns a certain HSV range into transparency.
hue Modify the hue and/or the saturation of the input.
huesaturation Apply hue-saturation-intensity adjustments to input video stream.
hysteresis Grow first stream into second stream by connecting components.
iccdetect Detect the colorspace from an embedded ICC profile (if present), and update the frame’s tags accordingly.
iccgen Generate ICC profiles and attach them to frames.
identity Obtain the identity score between two input videos.
idet Detect video interlacing type.
il Deinterleave or interleave fields.
inflate Apply inflate effect to the video.
interlace Simple interlacing filter from progressive contents.
kerndeint Deinterlace input video by applying Donald Graft’s adaptive kernel deinterling.
kirsch Apply kirsch operator to input video stream.
lagfun Slowly update darker pixels.
lenscorrection Correct radial lens distortion .
lensfun Apply lens correction via the lensfun library.
libplacebo Flexible GPU-accelerated processing filter based on libplacebo.
libvmaf Calulate the VMAF (Video Multi-Method Assessment Fusion) score for a reference/distorted pair of input videos.
limitdiff Apply limited difference filter using second and optionally third video stream.
limiter Limits the pixel components values to the specified range [min, max].
loop Loop video frames.
lut1d Apply a 1D LUT to an input video.
lut3d Apply a 3D LUT to an input video.
lumakey Turn certain luma values into transparency.
lut Compute a look-up table for binding each pixel component input value to an output value, and apply it to the input video.
lutrgb Compute a look-up table for binding each pixel component input value to an output value, and apply it to the input video.
lutyuv Compute a look-up table for binding each pixel component input value to an output value, and apply it to the input video.
lut2 The lut2 filter takes two input streams and outputs one
stream.
tlut2 The tlut2 (time lut2) filter takes two consecutive frames
from one single stream.
maskedclamp Clamp the first input stream with the second input and third input stream.
maskedmax Merge the second and third input stream into output stream using absolute differences between second input stream and first input stream and absolute difference between third input stream and first input stream.
maskedmerge Merge the first input stream with the second input stream using per pixel weights in the third input stream.
maskedmin Merge the second and third input stream into output stream using absolute differences between second input stream and first input stream and absolute difference between third input stream and first input stream.
maskedthreshold Pick pixels comparing absolute difference of two video streams with fixed threshold.
maskfun Create mask from input video.
mcdeint Apply motion-compensation deinterlacing.
median Pick median pixel from certain rectangle defined by radius.
mergeplanes Merge color channel components from several video streams.
mestimate Estimate and export motion vectors using block matching algorithms.
midequalizer Apply Midway Image Equalization effect using two video streams.
minterpolate Convert the video to specified frame rate using motion interpolation.
mix Mix several video input streams into one video stream.
monochrome Convert video to gray using custom color filter.
morpho This filter allows to apply main morphological grayscale transforms, erode and dilate with arbitrary structures set in second input stream.
mpdecimate Drop frames that do not differ greatly from the previous frame in order to reduce frame rate.
msad Obtain the MSAD (Mean Sum of Absolute Differences) between two input videos.
multiply Multiply first video stream pixels values with second video stream pixels values.
negate Negate (invert) the input video.
nlmeans Denoise frames using Non-Local Means algorithm.
nnedi Deinterlace video using neural network edge directed interpolation.
noformat Force libavfilter not to use any of the specified pixel formats for the input to the next filter.
noise Add noise on video input frame.
normalize Normalize RGB video (aka histogram stretching, contrast stretching).
null Pass the video source unchanged to the output.
ocr Optical Character Recognition .
ocv Apply a video transform using libopencv.
oscilloscope 2D Video Oscilloscope.
overlay Overlay one video on top of another.
overlay_cuda Overlay one video on top of another.
owdenoise Apply Overcomplete Wavelet denoiser.
pad Add paddings to the input image, and place the original input at the provided x, y coordinates.
palettegen Generate one palette for a whole video stream.
paletteuse Use a palette to downsample an input video stream.
perspective Correct perspective of video not recorded perpendicular to the screen.
phase Delay interlaced video by one field time so that the field order changes.
photosensitivity Reduce various flashes in video, so to help users with epilepsy.
pixdesctest Pixel format descriptor test filter, mainly useful for internal testing.
pixelize Apply pixelization to video stream.
pixscope Display sample values of color channels.
pp Enable the specified chain of postprocessing subfilters using libpostproc.
pp7 Apply Postprocessing filter 7.
premultiply Apply alpha premultiply effect to input video stream using first plane of second stream as alpha.
prewitt Apply prewitt operator to input video stream.
pseudocolor Alter frame colors in video with pseudocolors.
psnr Obtain the average, maximum and minimum PSNR (Peak Signal to Noise Ratio) between two input videos.
pullup Pulldown reversal (inverse telecine) filter, capable of handling mixed hard-telecine, 24000/1001 fps progressive, and 30000/1001 fps progressive content.
qp Change video quantization parameters (QP).
random Flush video frames from internal cache of frames into a random order.
readeia608 Read closed captioning (EIA-608) information from the top lines of a video frame.
readvitc Read vertical interval timecode (VITC) information from the top lines of a video frame.
remap Remap pixels using 2nd: Xmap and 3rd: Ymap input video stream.
removegrain The removegrain filter is a spatial denoiser for progressive video.
removelogo Suppress a TV station logo, using an image file to determine which pixels comprise the logo.
repeatfields This filter uses the repeat_field flag from the Video ES headers and hard repeats fields based on its value.
reverse Reverse a video clip.
rgbashift Shift R/G/B/A pixels horizontally and/or vertically.
roberts Apply roberts cross operator to input video stream.
rotate Rotate video by an arbitrary angle expressed in radians.
sab Apply Shape Adaptive Blur.
scale Scale (resize) the input video, using the libswscale library.
scale_cuda Scale (resize) and convert (pixel format) the input video, using accelerated CUDA kernels.
scale_npp Use the NVIDIA Performance Primitives (libnpp) to perform scaling and/or pixel format conversion on CUDA video frames.
scale2ref Scale (resize) the input video, based on a reference video.
scale2ref_npp Use the NVIDIA Performance Primitives (libnpp) to scale (resize) the input video, based on a reference video.
scharr Apply scharr operator to input video stream.
scroll Scroll input video horizontally and/or vertically by constant speed.
scdet Detect video scene change.
selectivecolor Adjust cyan, magenta, yellow and black (CMYK) to certain ranges of colors (such as "reds", "yellows", "greens", "cyans", .
separatefields The separatefields takes a frame-based video input and splits each frame into its components fields, producing a new half height clip with twice the frame rate and twice the frame count.
setdar The setdar filter sets the Display Aspect Ratio for the filter
output video.
setsar The setsar filter sets the Sample (aka Pixel) Aspect Ratio for
the filter output video.
setfield Force field for the output video frame.
setparams Force frame parameter for the output video frame.
sharpen_npp Use the NVIDIA Performance Primitives (libnpp) to perform image sharpening with border control.
shear Apply shear transform to input video.
showinfo Show a line containing various information for each input video frame.
showpalette Displays the 256 colors palette of each frame.
shuffleframes Reorder and/or duplicate and/or drop video frames.
shufflepixels Reorder pixels in video frames.
shuffleplanes Reorder and/or duplicate video planes.
signalstats Evaluate various visual metrics that assist in determining issues associated with the digitization of analog video media.
signature Calculates the MPEG-7 Video Signature.
siti Calculate Spatial Info (SI) and Temporal Info (TI) scores for a video, as defined in ITU-T P.
smartblur Blur the input video without impacting the outlines.
sobel Apply sobel operator to input video stream.
spp Apply a simple postprocessing filter that compresses and decompresses the image at several (or - in the case of quality level 6 - all) shifts and average the results.
sr Scale the input by applying one of the super-resolution methods based on convolutional neural networks.
ssim Obtain the SSIM (Structural SImilarity Metric) between two input videos.
stereo3d Convert between different stereoscopic image formats.
streamselect The streamselect and astreamselect filter supports the following
commands:
.
astreamselect The streamselect and astreamselect filter supports the following
commands:
.
subtitles Draw subtitles on top of input video using the libass library.
super2xsai Scale the input by 2x and smooth using the Super2xSaI (Scale and Interpolate) pixel art scaling algorithm.
swaprect Swap two rectangular objects in video.
swapuv Swap U & V plane.
tblend Blend successive video frames.
telecine Apply telecine process to the video.
thistogram Compute and draw a color distribution histogram for the input video across time.
threshold Apply threshold effect to video stream.
thumbnail Select the most representative frame in a given sequence of consecutive frames.
tile Tile several successive frames together.
tinterlace Perform various types of temporal field interlacing.
tmedian Pick median pixels from several successive input video frames.
tmidequalizer Apply Temporal Midway Video Equalization effect.
tmix Mix successive video frames.
tonemap Tone map colors from different dynamic ranges.
tpad Temporarily pad video frames.
transpose Transpose rows with columns in the input video and optionally flip it.
transpose_npp Transpose rows with columns in the input video and optionally flip it.
trim Trim the input so that the output contains one continuous subpart of the input.
unpremultiply Apply alpha unpremultiply effect to input video stream using first plane of second stream as alpha.
unsharp Sharpen or blur the input video.
untile Decompose a video made of tiled images into the individual images.
uspp Apply ultra slow/simple postprocessing filter that compresses and decompresses the image at several (or - in the case of quality level 8 - all) shifts and average the results.
v360 Convert 360 videos between various formats.
vaguedenoiser Apply a wavelet based denoiser.
varblur Apply variable blur filter by using 2nd video stream to set blur radius.
vectorscope Display 2 color component values in the two dimensional graph (which is called a vectorscope).
vidstabdetect Analyze video stabilization/deshaking.
vidstabtransform Video stabilization/deshaking: pass 2 of 2, see vidstabdetect for pass 1.
vflip Flip the input video vertically.
vfrdet Detect variable frame rate video.
vibrance Boost or alter saturation.
vif Obtain the average VIF (Visual Information Fidelity) between two input videos.
vignette Make or reverse a natural vignetting effect.
vmafmotion Obtain the average VMAF motion score of a video.
vstack Stack input videos vertically.
w3fdif Deinterlace the input video ("w3fdif" stands for "Weston 3 Field Deinterlacing Filter").
waveform Video waveform monitor.
weave The weave takes a field-based video input and join
each two sequential fields into single frame, producing a new double
height clip with half the frame rate and half the frame count.
doubleweave The doubleweave works same as weave but without
halving frame rate and frame count.
xbr Apply the xBR high-quality magnification filter which is designed for pixel art.
xcorrelate Apply normalized cross-correlation between first and second input video stream.
xfade Apply cross fade from one input video stream to another input video stream.
xmedian Pick median pixels from several input videos.
xstack Stack video inputs into custom layout.
yadif Deinterlace the input video ("yadif" means "yet another deinterlacing filter").
yadif_cuda Deinterlace the input video using the yadif algorithm, but implemented in CUDA so that it can work as part of a GPU accelerated pipeline with nvdec and/or nvenc.
yaepblur Apply blur filter while preserving edges ("yaepblur" means "yet another edge preserving blur filter").
zoompan Apply Zoom & Pan effect.
zscale Scale (resize) the input video, using the z.
OpenCL Video
avgblur_opencl Apply average blur filter.
boxblur_opencl Apply a boxblur algorithm to the input video.
colorkey_opencl RGB colorspace color keying.
convolution_opencl Apply convolution of 3x3, 5x5, 7x7 matrix.
erosion_opencl Apply erosion effect to the video.
deshake_opencl Feature-point based video stabilization filter.
dilation_opencl Apply dilation effect to the video.
nlmeans_opencl Non-local Means denoise filter through OpenCL, this filter accepts same options as nlmeans.
overlay_opencl Overlay one video on top of another.
pad_opencl Add paddings to the input image, and place the original input at the provided x, y coordinates.
prewitt_opencl Apply the Prewitt operator to input video stream.
program_opencl Filter video using an OpenCL program.
remap_opencl Remap pixels using 2nd: Xmap and 3rd: Ymap input video stream.
roberts_opencl Apply the Roberts cross operator to input video stream.
sobel_opencl Apply the Sobel operator to input video stream.
tonemap_opencl Perform HDR(PQ/HLG) to SDR conversion with tone-mapping.
unsharp_opencl Sharpen or blur the input video.
xfade_opencl Cross fade two videos with custom transition effect by using OpenCL.
VAAPI Video
overlay_vaapi Overlay one video on the top of another.
tonemap_vaapi Perform HDR(High Dynamic Range) to SDR(Standard Dynamic Range) conversion with tone-mapping.
Multimedia
abitscope Convert input audio to a video output, displaying the audio bit scope.
adrawgraph Draw a graph using input audio metadata.
agraphmonitor See graphmonitor.
ahistogram Convert input audio to a video output, displaying the volume histogram.
aphasemeter Measures phase of input audio, which is exported as metadata lavfi.
avectorscope Convert input audio to a video output, representing the audio vector scope.
bench Benchmark part of a filtergraph.
abench Benchmark part of a filtergraph.
concat Concatenate audio and video streams, joining them together one after the other.
ebur128 EBU R128 scanner filter.
interleave interleave works with video inputs, ainterleave with audio.
ainterleave interleave works with video inputs, ainterleave with audio.
latency Measure filtering latency.
alatency Measure filtering latency.
metadata Manipulate frame metadata.
ametadata Manipulate frame metadata.
perms Set read/write permissions for the output frames.
aperms Set read/write permissions for the output frames.
realtime Slow down filtering to match real time approximately.
arealtime Slow down filtering to match real time approximately.
segment segment works on video frames, asegment on audio samples.
asegment segment works on video frames, asegment on audio samples.
select Select frames to pass in output.
aselect Select frames to pass in output.
sendcmd sendcmd must be inserted between two video filters,
asendcmd must be inserted between two audio filters, but apart
from that they act the same way.
asendcmd sendcmd must be inserted between two video filters,
asendcmd must be inserted between two audio filters, but apart
from that they act the same way.
setpts setpts works on video frames, asetpts on audio frames.
asetpts setpts works on video frames, asetpts on audio frames.
setrange Force color range for the output video frame.
settb Set the timebase to use for the output frames timestamps.
asettb Set the timebase to use for the output frames timestamps.
showcqt Convert input audio to a video output representing frequency spectrum logarithmically using Brown-Puckette constant Q transform algorithm with direct frequency domain coefficient calculation (but the transform itself is not really constant Q, instead the Q factor is actually variable/clamped), with musical tone scale, from E0 to D#10.
showfreqs Convert input audio to video output representing the audio power spectrum.
showspatial Convert stereo input audio to a video output, representing the spatial relationship between two channels.
showspectrum Convert input audio to a video output, representing the audio frequency spectrum.
showspectrumpic Convert input audio to a single video frame, representing the audio frequency spectrum.
showvolume Convert input audio volume to a video output.
showwaves Convert input audio to a video output, representing the samples waves.
showwavespic Convert input audio to a single video frame, representing the samples waves.
sidedata Delete frame side data, or select frames based on it.
asidedata Delete frame side data, or select frames based on it.
spectrumsynth Synthesize audio from 2 input video spectrums, first input stream represents magnitude across time and second represents phase across time.
split asplit works with audio input, split with video.
asplit asplit works with audio input, split with video.
zmq zmq and azmq work as a pass-through filters.
azmq zmq and azmq work as a pass-through filters.